2020 Primary Election Dates and Overall Schedule
The 2020 primary calendar began with the Iowa Democratic caucuses on February 3, 2020, and the New Hampshire Democratic primary on February 11, 2020. The Republican Party scheduled its primaries and caucuses across all 50 states, with the first contests also starting in February 2020. Both parties used a mix of primaries and caucuses to allocate delegates, with the Democratic National Convention taking place in Milwaukee, Wisconsin, from August 17 to 20, 2020. The Republican National Convention was held in Charlotte, North Carolina, in August 2020. For a full state-by-state calendar, the Federal Election Commission provides an overview of the 2020 election cycle at https://www.fec.gov/elections/2020-election-cycle/.
Key early-state contests shaped the 2020 primary narrative. The Nevada Democratic caucuses took place on February 22, 2020, followed by the South Carolina Democratic primary on February 29, 2020. Super Tuesday, March 3, 2020, featured the largest single-day delegate allocation, with 14 states and territories holding Democratic primaries or caucuses. On the Republican side, many states scheduled their primaries for March through June 2020, with some contests serving as binding delegate selection events while others were purely advisory. The Associated Press and major news outlets tracked real-time results throughout the primary season.
Delegate Allocation Rules and Party-Specific Processes
The Democratic Party used a proportional allocation system for pledged delegates, requiring candidates to meet a 15 percent threshold at the district or state level to win delegates. The party also featured superdelegates, or unpledged party leaders and elected officials, who could vote on the first ballot at the convention only if a candidate had already secured a majority of pledged delegates. The Republican Party allowed each state party to choose between a winner-take-all, proportional, or hybrid method for allocating its delegates, with many states awarding all delegates to the candidate who won the primary or caucus. The Democratic National Committee released its complete delegate selection plan and calendar at https://www.democrats.org/.
Delegate counts played a central role in the 2020 Democratic primary. The party awarded a total of 3,979 pledged delegates, with an additional 771 superdelegates. To secure the nomination on the first ballot, a candidate needed 1,991 pledged delegates. The Republican Party had a total of 2,550 delegates, with a candidate needing 1,276 to clinch the nomination. Delegates were allocated based on primary and caucus results, congressional district victories, and statewide performance. The Bipartisan Policy Center and other election research organizations provided detailed analyses of the delegate math throughout the season.
Key Deadlines, Voter Registration, and Election Integrity
Voter registration deadlines varied by state and often fell weeks before the primary date. Many states offered same-day registration during early voting or on Election Day, while others required voters to register 15 to 30 days in advance. The United States Election Assistance Commission maintains a database of state-specific voter registration rules and deadlines at https://www.eac.gov/voters. Some states expanded mail-in and early voting options in 2020 due to public health considerations, which changed how and when many voters cast their ballots.
Election security and integrity were major topics during the 2020 primary season. The Cybersecurity and Infrastructure Security Agency, part of the Department of Homeland Security, provided guidance and resources to state and local election officials to protect voting infrastructure. The Federal Election Commission oversees campaign finance disclosures for primary races, including reports from candidates and political action committees.